<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        .one{
            width: 100px;
            height: 100px;
            padding: 50px;
        background-color: red;
            box-sizing: border-box;


        }
    </style>

</head>
<body>
<div class="one">

</div>
</body>
</html>